Posted on Sep 18, 2020
APOD: 2020 September 18 - Arp 78: Peculiar Galaxy in Aries
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Good Red Friday morning, Rallypoint. Today's Astronomy Picture of the Day (APOD) is titled "Arp 78: Peculiar Galaxy in Aries." A peculiar galaxy is a galaxy of unusual size, shape, or composition. Between five and ten percent of known galaxies are categorized as peculiar. When two galaxies come close to each other, their mutual gravitational forces can cause them to acquire highly irregular shapes. The terms 'peculiar galaxy' and 'interacting galaxy' have now become synonymous because the majority of peculiar galaxies attribute their forms to such gravitational forces.
Which brings us to today's APOD. Astronomer Halton Arp published his 'Atlas of Peculiar Galaxies' in 1966. Arp 78 (also known as NGC 772) is one of the galactic images featured in the Atlas. Found within the boundaries of the constellation Aries, it lies some 100 million light years away outside of our Milky Way. In the preface to his atlas, Dr. Arp observes that "the peculiarities of the galaxies pictured in this Atlas represent perturbations, deformations, and interactions which should enable us to analyze the nature of the real galaxies which we observe and which are too remote to experiment on directly."
Which brings us to today's APOD. Astronomer Halton Arp published his 'Atlas of Peculiar Galaxies' in 1966. Arp 78 (also known as NGC 772) is one of the galactic images featured in the Atlas. Found within the boundaries of the constellation Aries, it lies some 100 million light years away outside of our Milky Way. In the preface to his atlas, Dr. Arp observes that "the peculiarities of the galaxies pictured in this Atlas represent perturbations, deformations, and interactions which should enable us to analyze the nature of the real galaxies which we observe and which are too remote to experiment on directly."
APOD: 2020 September 18 - Arp 78: Peculiar Galaxy in Aries
Posted from apod.nasa.gov
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Good R.E.D. Friday morning Maj William W. 'Bill' Price! This galaxy is quite different than the majority of galaxies in the universe... The first thing that came to mind, based on the image, is that it looks like a tadpole... The tidal forces between it & it's companion galaxy is the gravitational/tidal are evident... Great APOD today, Bill...
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MSgt Paul Connors LTC Tom McNew LTC Stephen C. SSG Michael Noll SGT Steve McFarland LTC Stephen F. 1SG Steven Imerman Cpl (Join to see) Sgt Kelli Mays MSgt Robert "Rock" Aldi PO3 Lynn Spalding LTC (Join to see) SSG Gordon Holmes SMSgt Lawrence McCarterSGT Mark Anderson SPC Nancy Greene 1SG (Join to see) PO2 (Join to see) SGT Denny Espinosa SSG C.V. Shaw
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Ain't That Peculiar-Marvin Gaye
Ain't That Peculiar-Marvin Gaye
Thank you my friend Maj William W. 'Bill' Price for posting the NASA Astronomy Picture of the Day (APOD) for Friday, September, 18, 2020 entitled "Arp 78: Peculiar Galaxy in Aries."
Image: Arp 78 - Peculiar Galaxy in Aries - Image Credit & Copyright - Bernard Miller
A wonderful image of a section of the heavens which we refer to as outer space :-)
Images from hundreds of lightyears away give us a sense we are looking at the present :-)
APOD background:
"Explanation: Peculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Aries, some 100 million light-years beyond the stars and nebulae of our Milky Way galaxy. Also known as NGC 772, the island universe is over 100,000 light-years across and sports a single prominent outer spiral arm in this detailed cosmic portrait. Its brightest companion galaxy, compact NGC 770, is toward the upper right of the larger spiral. NGC 770's fuzzy, elliptical appearance contrasts nicely with a spiky foreground Milky Way star in matching yellowish hues. Tracking along sweeping dust lanes and lined with young blue star clusters, Arp 78's large spiral arm is likely due to gravitational tidal interactions. Faint streams of material seem to connect Arp 78 with its nearby companion galaxies."
Ain't That Peculiar-Marvin Gaye
https://www.youtube.com/watch?v=bCvsikXZ9wk
FYI Maj Robert Thornton Lt Col Charlie Brown COL Mikel J. Burroughs Sgt (Join to see) PO1 William "Chip" Nagel Maj Bill Smith, Ph.D. Lt Col John (Jack) Christensen SGT Denny Espinosa Sgt Vance Bonds MAJ Dale E. Wilson, Ph.D. TSgt David L. SPC Nancy GreenePO2 (Join to see) SSG Michael Noll SGT Denny Espinosa SPC Margaret Higgins Maj Marty Hogan TSgt Joe C.
Image: Arp 78 - Peculiar Galaxy in Aries - Image Credit & Copyright - Bernard Miller
A wonderful image of a section of the heavens which we refer to as outer space :-)
Images from hundreds of lightyears away give us a sense we are looking at the present :-)
APOD background:
"Explanation: Peculiar spiral galaxy Arp 78 is found within the boundaries of the head strong constellation Aries, some 100 million light-years beyond the stars and nebulae of our Milky Way galaxy. Also known as NGC 772, the island universe is over 100,000 light-years across and sports a single prominent outer spiral arm in this detailed cosmic portrait. Its brightest companion galaxy, compact NGC 770, is toward the upper right of the larger spiral. NGC 770's fuzzy, elliptical appearance contrasts nicely with a spiky foreground Milky Way star in matching yellowish hues. Tracking along sweeping dust lanes and lined with young blue star clusters, Arp 78's large spiral arm is likely due to gravitational tidal interactions. Faint streams of material seem to connect Arp 78 with its nearby companion galaxies."
Ain't That Peculiar-Marvin Gaye
https://www.youtube.com/watch?v=bCvsikXZ9wk
FYI Maj Robert Thornton Lt Col Charlie Brown COL Mikel J. Burroughs Sgt (Join to see) PO1 William "Chip" Nagel Maj Bill Smith, Ph.D. Lt Col John (Jack) Christensen SGT Denny Espinosa Sgt Vance Bonds MAJ Dale E. Wilson, Ph.D. TSgt David L. SPC Nancy GreenePO2 (Join to see) SSG Michael Noll SGT Denny Espinosa SPC Margaret Higgins Maj Marty Hogan TSgt Joe C.
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SPC Margaret Higgins
LTC Stephen F. - Our Dear Brother-in-CHRIST, Steve, I thank thee; beyond compare; for thy mentioning my name; in your VERY HONORING list of names.
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